From 38df9096bbb816695bc53fec953f66cdf7c38bac Mon Sep 17 00:00:00 2001 From: simon Date: Thu, 3 May 2012 17:49:20 +0000 Subject: [PATCH] Minor copy edit in agedu's man page, and also added another paragraph in the limitations section mentioning that it won't work with noatime. (Of course that _should_ be obvious, but it's still worth mentioning it as a thing to check someone else hasn't inflicted on you if agedu mysteriously isn't doing anything useful, and it's also worth commenting on relatime.) git-svn-id: svn://svn.tartarus.org/sgt/agedu@9480 cda61777-01e9-0310-a592-d414129be87e --- agedu.but | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/agedu.but b/agedu.but index 65ceaca..c81c16b 100644 --- a/agedu.but +++ b/agedu.but @@ -696,7 +696,18 @@ bothers re-reading it if it has; programs which do this include \cw{rsync}(\e{1}) and \cw{make}(\e{1}). Such programs will fail to update the atime of unmodified files despite depending on their continued existence; a directory full of such files will be reported -as disused by \cw{agedu} but deleting them will cause trouble. +as disused by \cw{agedu} even in situations where deleting them will +cause trouble. + +Finally, of course, \cw{agedu}'s normal usage mode depends critically +on the OS providing last-access times which are at least approximately +right. So a file system mounted with Linux's \cq{noatime} option, or +the equivalent on any other OS, will not give useful results! +(However, the Linux mount option \cq{relatime}, which distributions +now tend to use by default, should be fine for all but specialist +purposes: it reduces the accuracy of last-access times so that they +might be wrong by up to 24 hours, but if you're looking for files that +have been unused for months or years, that's not a problem.) \U LICENCE -- 2.11.0